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ISO X2CrNi18-9 Details

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X2CrNi18-9 Application:Stainless steels - Chemical composition

Category Type Grade Microstructure Designations
Grades Stainless Steels X2CrNi18-9 Austenite International - ISO , ISO 15510 (2010) - Stainless steels -- Chemical composition
ISO 16143-1 (2004) - Stainless steels for general purposes -- Part 1: Flat products
ISO 16143-2 (2004) - Stainless steels for general purposes -- Part 2: Semi-finished products, bars, rods and sections
ISO 16143-3 (2005) - Stainless steels for general purposes -- Part 3: Wire
ISO 9328-7 (2011) - Steel flat products for pressure purposes - Technical delivery conditions - Part 7: Stainless steels
ISO/TS 15510 (2003) - Stainless steels - Chemical composition

Chemical composition(wt.%) of X2CrNi18-9 grade: ISO 15510 (2010)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 1.00
Mn - 1.00
P - 0.045
S - 0.030
Cr 17.50 19.50
Ni 8.00 10.00
Mo - -
N - 0.11
Stainless steels - Chemical composition

Mechanical properties of grade X2CrNi18-9 ISO 15510 (2010)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
253 (≥) 342 (≥) 13 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical properties of grade X2CrNi18-9 ISO 15510 (2010)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
566 (≥) 737 (≥) 12 44 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 113
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
837 939 986

X2CrNi18-9 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
X2CrNi18-9 B.S. UK
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
1.4307 B.S. UK
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
X2CrNi18-9 AFNOR France
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
1.4307 AFNOR France
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
X2CrNi18-9 ISO International
Stainless steels - Chemical composition

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